marqueex / includes / Traits / Singleton.php

Singleton.php in MarqueeX – Smooth Marquee Slider, News Ticker & Post Marquee for Block Editor & Elementor 0.6.0, at includes/Traits/Singleton.php

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1	<?php
2
3	namespace Wpxero\Marqueex\Traits;
4
5	if (!defined('ABSPATH')) {
6	exit; // Exit if accessed directly.
7	}
8
9	/**
10	* Singleton Trait
11	*
12	* Provides singleton functionality to classes
13	*/
14	trait Singleton {
15	/**
16	* Instance of this class
17	*
18	* @var static
19	*/
20	protected static $instance = null;
21
22	/**
23	* Get instance of this class
24	*
25	* @return static
26	*/
27	public static function get_instance() {
28	if (null === static::$instance) {
29	static::$instance = new static();
30	}
31
32	return static::$instance;
33	}
34
35	/**
36	* Prevent cloning of the instance
37	*
38	* @return void
39	*/
40	private function __clone() {
41	}
42
43	/**
44	* Prevent unserializing of the instance
45	*
46	* @throws \Exception When attempting to unserialize
47	* @return void
48	*/
49	public function __wakeup() {
50	throw new \Exception('Cannot unserialize singleton');
51	}
52	}
53